/// <summary>
/// Enumerable de jugadas que devuelve todas las jugadas válidas para un estado del juego
/// </summary>
/// <returns></returns>
public override IEnumerable <IPlay <FourInLine> > PossiblesPlays()
{
List <FourInLinePlay> posiblesplays = new List <FourInLinePlay>();
for (int j = 0; j < CountColumns; j++)
{
if (board[board.GetLength(0) - 1, j] == null)
{
FourInLinePlay currentPlay = new FourInLinePlay(j);
posiblesplays.Add(currentPlay);
}
}
return(posiblesplays);
}
/// <summary>
/// Método que le da valores a las jugadas según las ventajas que le puedan brindar a los jugadores realizarlas (mientras más fichas haya
/// del jugador que realiza la jugada en esa fila, columna o diagonales; más vale la jugada)
/// </summary>
/// <param name="play"></param>
/// <returns></returns>
public override double PlayScore(IPlay <FourInLine> play)
{
FourInLinePlay myPlay = play as FourInLinePlay;
int y = myPlay.Column;
int x = board.GetLength(0);
for (int i = 0; i < board.GetLength(0); i++)
{
if (board[i, y] == null)
{
x = i;
}
}
int currentY = y;
int currentX = x;
int count1 = 0;
int count2 = 0;
int count3 = 0;
int count4 = 0;
while (currentY < board.GetLength(1) && board[x, y] == board[currentX, currentY])
{
currentY++;
count1++;
}
currentX = x;
currentY = y;
while (currentY >= 0 && board[x, y] == board[currentX, currentY])
{
currentY--;
count1++;
}
currentX = x;
currentY = y;
while (currentY >= 0 && board[x, y] == board[currentX, currentY])
{
currentY--;
count2++;
}
currentX = x;
currentY = y;
while (currentY < board.GetLength(1) && currentX >= 0 && board[x, y] == board[currentX, currentY])
{
currentX--;
currentY++;
count3++;
}
currentX = x;
currentY = y;
while (currentY >= 0 && currentX < board.GetLength(0) && board[x, y] == board[currentX, currentY])
{
currentX++;
currentY--;
count3++;
}
currentX = x;
currentY = y;
while (currentY <= 0 && currentX <= 0 && board[x, y] == board[currentX, currentY])
{
currentX--;
currentY--;
count4++;
}
currentX = x;
currentY = y;
while (currentY < board.GetLength(1) && currentX >= board.GetLength(0) && board[x, y] == board[currentX, currentY])
{
currentX++;
currentY++;
count4++;
}
return(Math.Max(Math.Max(count1, count2), Math.Max(count3, count4)));
}